diff options
Diffstat (limited to 'm4/printf.m4')
| -rw-r--r-- | m4/printf.m4 | 175 |
1 files changed, 132 insertions, 43 deletions
diff --git a/m4/printf.m4 b/m4/printf.m4 index 9c2ed1e..ef44f78 100644 --- a/m4/printf.m4 +++ b/m4/printf.m4 @@ -1,5 +1,5 @@ -# printf.m4 serial 42 -dnl Copyright (C) 2003, 2007-2011 Free Software Foundation, Inc. +# printf.m4 serial 50 +dnl Copyright (C) 2003, 2007-2013 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -63,7 +63,7 @@ changequote(,)dnl # Guess yes on FreeBSD >= 5. freebsd[1-4]*) gl_cv_func_printf_sizes_c99="guessing no";; freebsd* | kfreebsd*) gl_cv_func_printf_sizes_c99="guessing yes";; - # Guess yes on MacOS X >= 10.3. + # Guess yes on Mac OS X >= 10.3. darwin[1-6].*) gl_cv_func_printf_sizes_c99="guessing no";; darwin*) gl_cv_func_printf_sizes_c99="guessing yes";; # Guess yes on OpenBSD >= 3.9. @@ -178,28 +178,28 @@ static double zero = 0.0; int main () { int result = 0; - if (sprintf (buf, "%f", 1.0 / 0.0) < 0 + if (sprintf (buf, "%f", 1.0 / zero) < 0 || (strcmp (buf, "inf") != 0 && strcmp (buf, "infinity") != 0)) result |= 1; - if (sprintf (buf, "%f", -1.0 / 0.0) < 0 + if (sprintf (buf, "%f", -1.0 / zero) < 0 || (strcmp (buf, "-inf") != 0 && strcmp (buf, "-infinity") != 0)) result |= 1; if (sprintf (buf, "%f", zero / zero) < 0 || !strisnan (buf, 0, strlen (buf))) result |= 2; - if (sprintf (buf, "%e", 1.0 / 0.0) < 0 + if (sprintf (buf, "%e", 1.0 / zero) < 0 || (strcmp (buf, "inf") != 0 && strcmp (buf, "infinity") != 0)) result |= 4; - if (sprintf (buf, "%e", -1.0 / 0.0) < 0 + if (sprintf (buf, "%e", -1.0 / zero) < 0 || (strcmp (buf, "-inf") != 0 && strcmp (buf, "-infinity") != 0)) result |= 4; if (sprintf (buf, "%e", zero / zero) < 0 || !strisnan (buf, 0, strlen (buf))) result |= 8; - if (sprintf (buf, "%g", 1.0 / 0.0) < 0 + if (sprintf (buf, "%g", 1.0 / zero) < 0 || (strcmp (buf, "inf") != 0 && strcmp (buf, "infinity") != 0)) result |= 16; - if (sprintf (buf, "%g", -1.0 / 0.0) < 0 + if (sprintf (buf, "%g", -1.0 / zero) < 0 || (strcmp (buf, "-inf") != 0 && strcmp (buf, "-infinity") != 0)) result |= 16; if (sprintf (buf, "%g", zero / zero) < 0 @@ -222,7 +222,7 @@ changequote(,)dnl # Guess yes on FreeBSD >= 6. freebsd[1-5]*) gl_cv_func_printf_infinite="guessing no";; freebsd* | kfreebsd*) gl_cv_func_printf_infinite="guessing yes";; - # Guess yes on MacOS X >= 10.3. + # Guess yes on Mac OS X >= 10.3. darwin[1-6].*) gl_cv_func_printf_infinite="guessing no";; darwin*) gl_cv_func_printf_infinite="guessing yes";; # Guess yes on HP-UX >= 11. @@ -251,6 +251,7 @@ AC_DEFUN([gl_PRINTF_INFINITE_LONG_DOUBLE], AC_REQUIRE([gl_PRINTF_LONG_DOUBLE]) AC_REQUIRE([AC_PROG_CC]) AC_REQUIRE([gl_BIGENDIAN]) + AC_REQUIRE([gl_LONG_DOUBLE_VS_DOUBLE]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles dnl The user can set or unset the variable gl_printf_safe to indicate dnl that he wishes a safe handling of non-IEEE-754 'long double' values. @@ -294,34 +295,34 @@ int main () { int result = 0; nocrash_init(); - if (sprintf (buf, "%Lf", 1.0L / 0.0L) < 0 + if (sprintf (buf, "%Lf", 1.0L / zeroL) < 0 || (strcmp (buf, "inf") != 0 && strcmp (buf, "infinity") != 0)) result |= 1; - if (sprintf (buf, "%Lf", -1.0L / 0.0L) < 0 + if (sprintf (buf, "%Lf", -1.0L / zeroL) < 0 || (strcmp (buf, "-inf") != 0 && strcmp (buf, "-infinity") != 0)) result |= 1; if (sprintf (buf, "%Lf", zeroL / zeroL) < 0 || !strisnan (buf, 0, strlen (buf))) result |= 1; - if (sprintf (buf, "%Le", 1.0L / 0.0L) < 0 + if (sprintf (buf, "%Le", 1.0L / zeroL) < 0 || (strcmp (buf, "inf") != 0 && strcmp (buf, "infinity") != 0)) result |= 1; - if (sprintf (buf, "%Le", -1.0L / 0.0L) < 0 + if (sprintf (buf, "%Le", -1.0L / zeroL) < 0 || (strcmp (buf, "-inf") != 0 && strcmp (buf, "-infinity") != 0)) result |= 1; if (sprintf (buf, "%Le", zeroL / zeroL) < 0 || !strisnan (buf, 0, strlen (buf))) result |= 1; - if (sprintf (buf, "%Lg", 1.0L / 0.0L) < 0 + if (sprintf (buf, "%Lg", 1.0L / zeroL) < 0 || (strcmp (buf, "inf") != 0 && strcmp (buf, "infinity") != 0)) result |= 1; - if (sprintf (buf, "%Lg", -1.0L / 0.0L) < 0 + if (sprintf (buf, "%Lg", -1.0L / zeroL) < 0 || (strcmp (buf, "-inf") != 0 && strcmp (buf, "-infinity") != 0)) result |= 1; if (sprintf (buf, "%Lg", zeroL / zeroL) < 0 || !strisnan (buf, 0, strlen (buf))) result |= 1; -#if CHECK_PRINTF_SAFE && ((defined __ia64 && LDBL_MANT_DIG == 64) || (defined __x86_64__ || defined __amd64__) || (defined __i386 || defined __i386__ || defined _I386 || defined _M_IX86 || defined _X86_)) +#if CHECK_PRINTF_SAFE && ((defined __ia64 && LDBL_MANT_DIG == 64) || (defined __x86_64__ || defined __amd64__) || (defined __i386 || defined __i386__ || defined _I386 || defined _M_IX86 || defined _X86_)) && !HAVE_SAME_LONG_DOUBLE_AS_DOUBLE /* Representation of an 80-bit 'long double' as an initializer for a sequence of 'unsigned int' words. */ # ifdef WORDS_BIGENDIAN @@ -478,6 +479,7 @@ AC_DEFUN([gl_PRINTF_DIRECTIVE_A], #include <stdio.h> #include <string.h> static char buf[100]; +static double zero = 0.0; int main () { int result = 0; @@ -502,17 +504,17 @@ int main () result |= 4; /* This catches a FreeBSD 6.1 bug. See <http://lists.gnu.org/archive/html/bug-gnulib/2007-04/msg00107.html> */ - if (sprintf (buf, "%010a %d", 1.0 / 0.0, 33, 44, 55) < 0 + if (sprintf (buf, "%010a %d", 1.0 / zero, 33, 44, 55) < 0 || buf[0] == '0') result |= 8; - /* This catches a MacOS X 10.3.9 (Darwin 7.9) bug. */ + /* This catches a Mac OS X 10.3.9 (Darwin 7.9) bug. */ if (sprintf (buf, "%.1a", 1.999) < 0 || (strcmp (buf, "0x1.0p+1") != 0 && strcmp (buf, "0x2.0p+0") != 0 && strcmp (buf, "0x4.0p-1") != 0 && strcmp (buf, "0x8.0p-2") != 0)) result |= 16; - /* This catches the same MacOS X 10.3.9 (Darwin 7.9) bug and also a + /* This catches the same Mac OS X 10.3.9 (Darwin 7.9) bug and also a glibc 2.4 bug <http://sourceware.org/bugzilla/show_bug.cgi?id=2908>. */ if (sprintf (buf, "%.1La", 1.999L) < 0 || (strcmp (buf, "0x1.0p+1") != 0 @@ -562,13 +564,14 @@ AC_DEFUN([gl_PRINTF_DIRECTIVE_F], #include <stdio.h> #include <string.h> static char buf[100]; +static double zero = 0.0; int main () { int result = 0; if (sprintf (buf, "%F %d", 1234567.0, 33, 44, 55) < 0 || strcmp (buf, "1234567.000000 33") != 0) result |= 1; - if (sprintf (buf, "%F", 1.0 / 0.0) < 0 + if (sprintf (buf, "%F", 1.0 / zero) < 0 || (strcmp (buf, "INF") != 0 && strcmp (buf, "INFINITY") != 0)) result |= 2; /* This catches a Cygwin 1.5.x bug. */ @@ -587,7 +590,7 @@ changequote(,)dnl # Guess yes on FreeBSD >= 6. freebsd[1-5]*) gl_cv_func_printf_directive_f="guessing no";; freebsd* | kfreebsd*) gl_cv_func_printf_directive_f="guessing yes";; - # Guess yes on MacOS X >= 10.3. + # Guess yes on Mac OS X >= 10.3. darwin[1-6].*) gl_cv_func_printf_directive_f="guessing no";; darwin*) gl_cv_func_printf_directive_f="guessing yes";; # Guess yes on Solaris >= 2.10. @@ -615,12 +618,27 @@ AC_DEFUN([gl_PRINTF_DIRECTIVE_N], AC_RUN_IFELSE( [AC_LANG_SOURCE([[ #include <stdio.h> +#include <stdlib.h> #include <string.h> +#ifdef _MSC_VER +/* See page about "Parameter Validation" on msdn.microsoft.com. */ +static void cdecl +invalid_parameter_handler (const wchar_t *expression, + const wchar_t *function, + const wchar_t *file, unsigned int line, + uintptr_t dummy) +{ + exit (1); +} +#endif static char fmtstring[10]; static char buf[100]; int main () { int count = -1; +#ifdef _MSC_VER + _set_invalid_parameter_handler (invalid_parameter_handler); +#endif /* Copy the format string. Some systems (glibc with _FORTIFY_SOURCE=2) support %n in format strings in read-only memory but not in writable memory. */ @@ -636,7 +654,8 @@ int main () [ changequote(,)dnl case "$host_os" in - *) gl_cv_func_printf_directive_n="guessing yes";; + mingw*) gl_cv_func_printf_directive_n="guessing no";; + *) gl_cv_func_printf_directive_n="guessing yes";; esac changequote([,])dnl ]) @@ -862,9 +881,10 @@ AC_DEFUN([gl_PRINTF_FLAG_ZERO], #include <stdio.h> #include <string.h> static char buf[100]; +static double zero = 0.0; int main () { - if (sprintf (buf, "%010f", 1.0 / 0.0, 33, 44, 55) < 0 + if (sprintf (buf, "%010f", 1.0 / zero, 33, 44, 55) < 0 || (strcmp (buf, " inf") != 0 && strcmp (buf, " infinity") != 0)) return 1; @@ -892,7 +912,8 @@ dnl On mingw, precisions larger than 512 are treated like 512, in integer, dnl floating-point or pointer output. On Solaris 10/x86, precisions larger dnl than 510 in floating-point output crash the program. On Solaris 10/SPARC, dnl precisions larger than 510 in floating-point output yield wrong results. -dnl On BeOS, precisions larger than 1044 crash the program. +dnl On AIX 7.1, precisions larger than 998 in floating-point output yield +dnl wrong results. On BeOS, precisions larger than 1044 crash the program. dnl Result is gl_cv_func_printf_precision. AC_DEFUN([gl_PRINTF_PRECISION], @@ -921,6 +942,9 @@ int main () if (sprintf (buf, "%.511f %d", 1.0, 33, 44) < 511 + 5 || buf[0] != '1') result |= 4; + if (sprintf (buf, "%.999f %d", 1.0, 33, 44) < 999 + 5 + || buf[0] != '1') + result |= 4; return result; }]])], [gl_cv_func_printf_precision=yes], @@ -928,7 +952,7 @@ int main () [ changequote(,)dnl case "$host_os" in - # Guess no only on Solaris, native Win32, and BeOS systems. + # Guess no only on Solaris, native Windows, and BeOS systems. solaris*) gl_cv_func_printf_precision="guessing no" ;; mingw* | pw*) gl_cv_func_printf_precision="guessing no" ;; beos*) gl_cv_func_printf_precision="guessing no" ;; @@ -1004,8 +1028,9 @@ int main() changequote([,])dnl ])]) if AC_TRY_EVAL([ac_link]) && test -s conftest$ac_exeext; then - (./conftest + (./conftest 2>&AS_MESSAGE_LOG_FD result=$? + _AS_ECHO_LOG([\$? = $result]) if test $result != 0 && test $result != 77; then result=1; fi exit $result ) >/dev/null 2>/dev/null @@ -1019,7 +1044,7 @@ changequote([,])dnl fi rm -fr conftest* else - dnl A universal build on Apple MacOS X platforms. + dnl A universal build on Apple Mac OS X platforms. dnl The result would be 'no' in 32-bit mode and 'yes' in 64-bit mode. dnl But we need a configuration result that is valid in both modes. gl_cv_func_printf_enomem="guessing no" @@ -1072,6 +1097,7 @@ AC_DEFUN([gl_SNPRINTF_TRUNCATION_C99], [ AC_REQUIRE([AC_PROG_CC]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_REQUIRE([gl_SNPRINTF_PRESENCE]) AC_CACHE_CHECK([whether snprintf truncates the result as in C99], [gl_cv_func_snprintf_truncation_c99], [ @@ -1079,11 +1105,25 @@ AC_DEFUN([gl_SNPRINTF_TRUNCATION_C99], [AC_LANG_SOURCE([[ #include <stdio.h> #include <string.h> +#if HAVE_SNPRINTF +# define my_snprintf snprintf +#else +# include <stdarg.h> +static int my_snprintf (char *buf, int size, const char *format, ...) +{ + va_list args; + int ret; + va_start (args, format); + ret = vsnprintf (buf, size, format, args); + va_end (args); + return ret; +} +#endif static char buf[100]; int main () { strcpy (buf, "ABCDEF"); - snprintf (buf, 3, "%d %d", 4567, 89); + my_snprintf (buf, 3, "%d %d", 4567, 89); if (memcmp (buf, "45\0DEF", 6) != 0) return 1; return 0; @@ -1098,7 +1138,7 @@ changequote(,)dnl # Guess yes on FreeBSD >= 5. freebsd[1-4]*) gl_cv_func_snprintf_truncation_c99="guessing no";; freebsd* | kfreebsd*) gl_cv_func_snprintf_truncation_c99="guessing yes";; - # Guess yes on MacOS X >= 10.3. + # Guess yes on Mac OS X >= 10.3. darwin[1-6].*) gl_cv_func_snprintf_truncation_c99="guessing no";; darwin*) gl_cv_func_snprintf_truncation_c99="guessing yes";; # Guess yes on OpenBSD >= 3.9. @@ -1153,6 +1193,7 @@ AC_DEFUN_ONCE([gl_SNPRINTF_RETVAL_C99], [ AC_REQUIRE([AC_PROG_CC]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_REQUIRE([gl_SNPRINTF_PRESENCE]) AC_CACHE_CHECK([whether snprintf returns a byte count as in C99], [gl_cv_func_snprintf_retval_c99], [ @@ -1160,15 +1201,29 @@ AC_DEFUN_ONCE([gl_SNPRINTF_RETVAL_C99], [AC_LANG_SOURCE([[ #include <stdio.h> #include <string.h> +#if HAVE_SNPRINTF +# define my_snprintf snprintf +#else +# include <stdarg.h> +static int my_snprintf (char *buf, int size, const char *format, ...) +{ + va_list args; + int ret; + va_start (args, format); + ret = vsnprintf (buf, size, format, args); + va_end (args); + return ret; +} +#endif static char buf[100]; int main () { strcpy (buf, "ABCDEF"); - if (snprintf (buf, 3, "%d %d", 4567, 89) != 7) + if (my_snprintf (buf, 3, "%d %d", 4567, 89) != 7) return 1; - if (snprintf (buf, 0, "%d %d", 4567, 89) != 7) + if (my_snprintf (buf, 0, "%d %d", 4567, 89) != 7) return 2; - if (snprintf (NULL, 0, "%d %d", 4567, 89) != 7) + if (my_snprintf (NULL, 0, "%d %d", 4567, 89) != 7) return 3; return 0; }]])], @@ -1182,7 +1237,7 @@ changequote(,)dnl # Guess yes on FreeBSD >= 5. freebsd[1-4]*) gl_cv_func_snprintf_retval_c99="guessing no";; freebsd* | kfreebsd*) gl_cv_func_snprintf_retval_c99="guessing yes";; - # Guess yes on MacOS X >= 10.3. + # Guess yes on Mac OS X >= 10.3. darwin[1-6].*) gl_cv_func_snprintf_retval_c99="guessing no";; darwin*) gl_cv_func_snprintf_retval_c99="guessing yes";; # Guess yes on OpenBSD >= 3.9. @@ -1217,6 +1272,7 @@ AC_DEFUN([gl_SNPRINTF_DIRECTIVE_N], [ AC_REQUIRE([AC_PROG_CC]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_REQUIRE([gl_SNPRINTF_PRESENCE]) AC_CACHE_CHECK([whether snprintf fully supports the 'n' directive], [gl_cv_func_snprintf_directive_n], [ @@ -1224,6 +1280,20 @@ AC_DEFUN([gl_SNPRINTF_DIRECTIVE_N], [AC_LANG_SOURCE([[ #include <stdio.h> #include <string.h> +#if HAVE_SNPRINTF +# define my_snprintf snprintf +#else +# include <stdarg.h> +static int my_snprintf (char *buf, int size, const char *format, ...) +{ + va_list args; + int ret; + va_start (args, format); + ret = vsnprintf (buf, size, format, args); + va_end (args); + return ret; +} +#endif static char fmtstring[10]; static char buf[100]; int main () @@ -1233,7 +1303,7 @@ int main () support %n in format strings in read-only memory but not in writable memory. */ strcpy (fmtstring, "%d %n"); - snprintf (buf, 4, fmtstring, 12345, &count, 33, 44, 55); + my_snprintf (buf, 4, fmtstring, 12345, &count, 33, 44, 55); if (count != 6) return 1; return 0; @@ -1248,7 +1318,7 @@ changequote(,)dnl # Guess yes on FreeBSD >= 5. freebsd[1-4]*) gl_cv_func_snprintf_directive_n="guessing no";; freebsd* | kfreebsd*) gl_cv_func_snprintf_directive_n="guessing yes";; - # Guess yes on MacOS X >= 10.3. + # Guess yes on Mac OS X >= 10.3. darwin[1-6].*) gl_cv_func_snprintf_directive_n="guessing no";; darwin*) gl_cv_func_snprintf_directive_n="guessing yes";; # Guess yes on Solaris >= 2.6. @@ -1285,16 +1355,31 @@ dnl Result is gl_cv_func_snprintf_size1. AC_DEFUN([gl_SNPRINTF_SIZE1], [ AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([gl_SNPRINTF_PRESENCE]) AC_CACHE_CHECK([whether snprintf respects a size of 1], [gl_cv_func_snprintf_size1], [ AC_RUN_IFELSE( [AC_LANG_SOURCE([[ #include <stdio.h> +#if HAVE_SNPRINTF +# define my_snprintf snprintf +#else +# include <stdarg.h> +static int my_snprintf (char *buf, int size, const char *format, ...) +{ + va_list args; + int ret; + va_start (args, format); + ret = vsnprintf (buf, size, format, args); + va_end (args); + return ret; +} +#endif int main() { static char buf[8] = { 'D', 'E', 'A', 'D', 'B', 'E', 'E', 'F' }; - snprintf (buf, 1, "%d", 12345); + my_snprintf (buf, 1, "%d", 12345); return buf[1] != 'E'; }]])], [gl_cv_func_snprintf_size1=yes], @@ -1375,7 +1460,7 @@ changequote(,)dnl # Guess yes on FreeBSD >= 5. freebsd[1-4]*) gl_cv_func_vsnprintf_zerosize_c99="guessing no";; freebsd* | kfreebsd*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; - # Guess yes on MacOS X >= 10.3. + # Guess yes on Mac OS X >= 10.3. darwin[1-6].*) gl_cv_func_vsnprintf_zerosize_c99="guessing no";; darwin*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; # Guess yes on Cygwin. @@ -1455,17 +1540,18 @@ dnl 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 dnl glibc 2.5 . . . . . . . . . . . . . . . . . . . . dnl glibc 2.3.6 . . . . # . . . . . . . . . . . . . . . dnl FreeBSD 5.4, 6.1 . . . . # . . . . . . # . # . . . . . . -dnl MacOS X 10.5.8 . . . # # . . . . . . # . . . . . . . . -dnl MacOS X 10.3.9 . . . . # . . . . . . # . # . . . . . . +dnl Mac OS X 10.5.8 . . . # # . . . . . . # . . . . . . . . +dnl Mac OS X 10.3.9 . . . . # . . . . . . # . # . . . . . . dnl OpenBSD 3.9, 4.0 . . # # # # . # . # . # . # . . . . . . dnl Cygwin 1.7.0 (2009) . . . # . . . ? . . . . . ? . . . . . . dnl Cygwin 1.5.25 (2008) . . . # # . . # . . . . . # . . . . . . dnl Cygwin 1.5.19 (2006) # . . # # # . # . # . # # # . . . . . . -dnl Solaris 11 2010-11 . . # # # . . # . . . # . . . . . . . . +dnl Solaris 11 2011-11 . . # # # . . # . . . # . . . . . . . . dnl Solaris 10 . . # # # . . # . . . # # . . . . . . . dnl Solaris 2.6 ... 9 # . # # # # . # . . . # # . . . # . . . dnl Solaris 2.5.1 # . # # # # . # . . . # . . # # # # # # -dnl AIX 5.2, 7.1 . . # # # . . . . . . # . . . . . . . . +dnl AIX 7.1 . . # # # . . . . . . # # . . . . . . . +dnl AIX 5.2 . . # # # . . . . . . # . . . . . . . . dnl AIX 4.3.2, 5.1 # . # # # # . . . . . # . . . . # . . . dnl HP-UX 11.31 . . . . # . . . . . . # . . . . # # . . dnl HP-UX 11.{00,11,23} # . . . # # . . . . . # . . . . # # . # @@ -1478,4 +1564,7 @@ dnl NetBSD 4.0 . ? ? ? ? ? . ? . ? ? ? ? ? . dnl NetBSD 3.0 . . . . # # . ? # # ? # . # . . . . . . dnl Haiku . . . # # # . # . . . . . ? . . ? . . . dnl BeOS # # . # # # . ? # . ? . # ? . . ? . . . -dnl mingw # # # # # # . . # # . # # ? . # # # . . +dnl old mingw / msvcrt # # # # # # . . # # . # # ? . # # # . . +dnl MSVC 9 # # # # # # # . # # . # # ? # # # # . . +dnl mingw 2009-2011 . # . # . . . . # # . . . ? . . . . . . +dnl mingw-w64 2011 # # # # # # . . # # . # # ? . # # # . . |